3. An auditor for the Philippine Postal Service wants to examine its special five-day priority mail handling to determine the proportion of parcels that actually arrive within the promised five-day period. A randomly selected sample of 3000 such parcels is found to contain 1550 that were delivered on time. Does the sample data provide evidence to conclude that the percentage of on-time parcels is more than 85% (using a=0.01) Step 1: State the hypotheses. Step 2: The level of significance, one/two-tailed test, degrees of freedom Step 3: Statistical Test Step 4: Computation Step 5: Decision Rule Step 6: Reject Ho or Failed to Reject Ho Step 7: Conclusion
3. An auditor for the Philippine Postal Service wants to examine its special five-day priority mail handling to determine the proportion of parcels that actually arrive within the promised five-day period. A randomly selected sample of 3000 such parcels is found to contain 1550 that were delivered on time. Does the sample data provide evidence to conclude that the percentage of on-time parcels is more than 85% (using a=0.01) Step 1: State the hypotheses. Step 2: The level of significance, one/two-tailed test, degrees of freedom Step 3: Statistical Test Step 4: Computation Step 5: Decision Rule Step 6: Reject Ho or Failed to Reject Ho Step 7: Conclusion
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
Related questions
Question
![3. An auditor for the Philippine Postal Service wants to examine its special five-day
priority mail handling to determine the proportion of parcels that actually arrive within
the promised five-day period. A randomly selected sample of 3000 such parcels is
found to contain 1550 that were delivered on time. Does the sample data provide
evidence to conclude that the percentage of on-time parcels is more than 85% (using
a=0.01)
Step 1: State the hypotheses.
Step 2: The level of significance, one/two-tailed test, degrees of freedom
Step 3: Statistical Test
Step 4: Computation
Step 5: Decision Rule
Step 6: Reject Ho or Failed to Reject Ho
Step 7: Conclusion](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F32640388-ea5b-4590-bfd2-df296363d6e9%2F07e421ad-2a6a-41c2-9916-05bcac121b15%2Fyah6gcd_processed.png&w=3840&q=75)
Transcribed Image Text:3. An auditor for the Philippine Postal Service wants to examine its special five-day
priority mail handling to determine the proportion of parcels that actually arrive within
the promised five-day period. A randomly selected sample of 3000 such parcels is
found to contain 1550 that were delivered on time. Does the sample data provide
evidence to conclude that the percentage of on-time parcels is more than 85% (using
a=0.01)
Step 1: State the hypotheses.
Step 2: The level of significance, one/two-tailed test, degrees of freedom
Step 3: Statistical Test
Step 4: Computation
Step 5: Decision Rule
Step 6: Reject Ho or Failed to Reject Ho
Step 7: Conclusion
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